56162287 has 4 divisors (see below), whose sum is σ = 56216776. Its totient is φ = 56107800.

The previous prime is 56162269. The next prime is 56162291. The reversal of 56162287 is 78226165.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56162287 - 2¹⁹ = 55637999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56162387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25668 + ... + 27769.

It is an arithmetic number, because the mean of its divisors is an integer number (14054194).

Almost surely, 2^56162287 is an apocalyptic number.

56162287 is a deficient number, since it is larger than the sum of its proper divisors (54489).

56162287 is a wasteful number, since it uses less digits than its factorization.

56162287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54488.

The product of its digits is 40320, while the sum is 37.

The square root of 56162287 is about 7494.1501853112. The cubic root of 56162287 is about 382.9554561471.

The spelling of 56162287 in words is "fifty-six million, one hundred sixty-two thousand, two hundred eighty-seven".